Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating Activities
Net income (loss) before preference dividends	$ (76,671)	$ 71,272
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net realized and unrealized (gains) losses on investments	118,439	(32,784)
Amortization of fixed assets	3	72
Share-based compensation	852	2,330
Changes in:
Accrued investment income	(349)	2,548
Premiums receivable	8,621	(60)
Reinsurance recoverable on unpaid and paid losses and loss adjustment expenses	(54,442)	(37,611)
Prepaid reinsurance premiums	658	(17,926)
Deferred acquisition costs, net	(2,385)	9,396
Reserve for losses and loss adjustment expenses	110,913	93,421
Unearned premiums	20,324	(14,729)
Reinsurance balances payable	(5,530)	2,379
Funds held with reinsurers	(263)	(10,890)
Other liabilities	(20,087)	48,743
Other items	(12,740)	(274)
Net Cash Provided By Operating Activities	87,343	115,887
Investing Activities
Purchase of term loans	(159,650)	(233,730)
Purchase of fixed maturity investments	(902,584)	(746,930)
Purchase of short-term investments with maturities over three months	7,048	0
Proceeds from sale, redemptions and maturity of term loans	267,393	189,576
Proceeds from sales, redemptions and maturities of fixed maturity investments	760,494	778,128
Proceeds from sales, redemptions and maturities of other investments	0	24,636
Proceeds from sales, redemptions and maturities of short-term investments with maturities over three months	23,202	21,909
Net (purchases) sales of short-term investments with maturities less than three months	(45,871)	26,694
Purchases of equity securities	(6,213)	(52,179)
Proceeds from sales of equity securities	9,118	26,421
Net settlements of derivative instruments	2,444	619
Purchases of furniture, equipment and other assets	(2)	0
Net Cash Provided by (Used For) Investing Activities	(58,717)	35,144
Financing Activities
Dividends paid on redeemable preference shares	(2,233)	(9,632)
Repayments on borrowings	(165,000)	(198,426)
Proceeds from borrowings	153,048	62,800
Purchases of common shares under share repurchase program	(2,867)	0
Net Cash Provided By (Used For) Financing Activities	(17,052)	(145,258)
Effects of exchange rate changes on foreign currency cash	(6,358)	(325)
Increase (decrease) in cash	5,216	5,448
Cash and cash equivalents, beginning of period	102,437	63,529
Cash and cash equivalents, end of period	107,653	68,977
Supplementary information
Income taxes paid	0	20
Interest paid	9,579	15,103
Non-cash exchange of investments	$ 33,236	$ 0